GetChannelFunctionIndex()

Description

The GetChannelFunctionIndex Lua function returns the integer matching a channel function based on two index inputs.

Arguments

• Integer:
  The first integer is a UI Channel Index. This can be found in the Parameter List or by the GetUIChannelIndex() Lua function.
• Integer:
  This integer is an Attribute Index (0-based). This can be found in the Attribute Definitions or by the GetAttributeIndex() Lua function.

Return

• Integer:
  The returned integer to a channel function.

Example

This example prints the indexes based on the fixture selection and the “Dimmer” attribute.

Copy CodeLua
```
return function()

-- Get the Attribute index and UIChannel index.
local attributeIndex = GetAttributeIndex("Dimmer")
local uiChannelIndex = GetUIChannelIndex(SelectionFirst(),attributeIndex)
-- End the function if any of the index return nil.
if (attributeIndex == nil or uiChannelIndex == nil) then
    ErrPrintf("Something wrong happened, maybe your first selected fixture don't have a Dimmer - Please try again")
    return
end
-- Get the Channel Function Index and store it in a variable.
local channelFunctionIndex = GetChannelFunctionIndex(uiChannelIndex,attributeIndex)
Printf("The UIChannel Index is: %i. The Attribute Index is: %i. The Channel Function Index is: %i", uiChannelIndex, attributeIndex, channelFunctionIndex)

end